/* Main Menu */
.vk-layout__main-menu {
    position: fixed;
    top: var(--toolbar-height);
    left: 0;
    width: var(--permanent-drawer-width);
    height: calc(100vh - var(--toolbar-height));
    background-color: #f5f5f5;
    z-index: 8;
    overflow: visible; /* Allow submenu to fly out */
    transition: transform 0.3s ease;
    border-right: 1px solid var(--gray-smooth);
}

.vk-layout__main-menu--collapsed {
    transform: translateX(calc(-1 * var(--permanent-drawer-width) + 56px));
    width: 56px;
}

@media (min-width: 1280px) {
    .vk-layout__main-menu--collapsed {
        transform: translateX(0);
    }
}

.vk-main-web-menu {
    height: 100%;
    padding: 0;
    position: relative;
    overflow: visible;
}

.vk-main-web-menu__toggle {
    width: 100%;
    height: 48px;
    background-color: transparent;
    border: none;
    border-bottom: 1px solid transparent;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 16px;
    cursor: pointer;
    transition: background-color 0.15s ease;
    position: relative;
    z-index: 10;
}

.vk-main-web-menu__toggle:hover {
    background-color: var(--cl-super-soft);
}

.vk-main-web-menu__toggle-icon {
    transition: all 0.3s ease;
    font-size: 24px;
    color: var(--cl-hard);
}

.vk-main-web-menu__items {
    padding: 8px 0;
    overflow-y: auto;
    overflow-x: visible;
    max-height: calc(100vh - var(--toolbar-height) - 48px); /* Full height minus toolbar and toggle button */
}

.vk-main-web-menu__item {
    position: relative;
}

.vk-main-web-menu__item + .vk-main-web-menu__item {
    margin-top: 0;
}

.vk-main-web-menu__link {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-left: 16px;
    padding-right: 16px;
    text-transform: uppercase;
    height: 48px;
    white-space: nowrap;
    letter-spacing: 0.04em;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--gray-darker);
    transition: all 180ms ease;
    position: relative;
    margin-bottom: 2px;
}

.vk-main-web-menu__link > i {
    margin-right: 16px;
    color: var(--gray-dark);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.vk-main-web-menu__link:hover,
.vk-main-web-menu__link.activated {
    background-color: var(--cl-hard);
    color: var(--white);
}

.vk-main-web-menu__link:hover > i,
.vk-main-web-menu__link.activated > i {
    color: var(--white);
}

.vk-main-web-menu__link span {
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    display: inline;
}

/* Submenu - flyout panel to the right */
.vk-main-web-menu__submenu {
    display: none;
    position: fixed;
    left: var(--permanent-drawer-width);
    top: var(--toolbar-height);
    bottom: 0;
    background-color: var(--cl-hard);
    width: 350px;
    padding: 0;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.2);
    z-index: 9;
    overflow-y: auto;
}

/* Submenu positioning based on collapsed state - applies to all screen sizes */
.vk-layout__main-menu--collapsed .vk-main-web-menu__submenu {
    left: 56px !important;  /* Position submenu next to collapsed menu (collapsed menu width is 56px) */
    top: var(--toolbar-height) !important;  /* Ensure submenu starts at top of menu area */
}

/* When menu is NOT collapsed, position at full width */
.vk-layout__main-menu:not(.vk-layout__main-menu--collapsed) .vk-main-web-menu__submenu {
    left: var(--permanent-drawer-width);  /* 280px - full menu width */
    top: var(--toolbar-height);  /* Ensure submenu starts at top of menu area */
}

/* Tablet mode: override default submenu positioning based on state */
@media (min-width: 377px) and (max-width: 1279px) {
    /* Collapsed state already handled by global rule above */
    .vk-layout__main-menu--collapsed .vk-main-web-menu__submenu {
        left: 56px !important;
        top: var(--toolbar-height) !important;
    }
    
    /* Expanded state */
    .vk-layout__main-menu:not(.vk-layout__main-menu--collapsed) .vk-main-web-menu__submenu {
        left: 280px !important;
        top: var(--toolbar-height) !important;
    }
}

/* Mobile/Phone mode: submenu inside the slide-out menu */
@media (max-width: 376px) {
    .vk-main-web-menu__submenu {
        position: relative;
        left: 0;
        top: 0;
        width: 100%;
        box-shadow: none;
        background-color: rgba(38, 65, 143, 0.95);
    }
}

.vk-main-web-menu__item {
    position: relative;
    overflow: visible;
}

.vk-main-web-menu__item--has-submenu {
    position: relative;
}

/* Show submenu on click for all screen sizes */
.vk-main-web-menu__item--has-submenu.submenu-open .vk-main-web-menu__submenu {
    display: block !important;
}

/* Submenu header */
.vk-main-web-menu__submenu-header {
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 500;
    padding: 26px 32px;
    margin-bottom: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Indicator for items with submenu */
.vk-main-web-menu__link__submenu-indicator {
    position: absolute;
    right: 12px;
    font-size: 20px;
    opacity: 0.7;
    pointer-events: none;
}

.vk-layout__main-menu--collapsed .vk-main-web-menu__link__submenu-indicator {
    /* Keep indicators visible in collapsed mode to show which items have submenus */
    display: block;
    right: 4px;  /* Position at right edge */
    bottom: 4px; /* Position at bottom */
    top: auto;   /* Override any top positioning */
    font-size: 14px;  /* Smaller indicator */
    opacity: 0.9;
}

.vk-main-web-menu__submenu-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 32px;
    color: var(--white);
    text-decoration: none;
    font-size: 1rem;
    text-transform: none;
    letter-spacing: normal;
    transition: background-color 0.15s ease;
    white-space: nowrap;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.vk-main-web-menu__submenu-item i {
    font-size: 20px;
    opacity: 0.9;
}

.vk-main-web-menu__submenu-item:last-child {
    border-bottom: none;
}

.vk-main-web-menu__submenu-item:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

.vk-main-web-menu__submenu-item:hover i {
    opacity: 1;
}

/* Ensure submenu stays visible when hovering over it */
.vk-main-web-menu__submenu:hover {
    display: block !important;
}

/* Collapsed menu styles */
.vk-layout__main-menu--collapsed .vk-main-web-menu__link span {
    display: none;
}

.vk-layout__main-menu--collapsed {
    width: 56px;
}

.vk-layout__main-menu--collapsed .vk-main-web-menu__link {
    padding-left: 16px;
    padding-right: 16px;
    justify-content: center;
}

.vk-layout__main-menu--collapsed .vk-main-web-menu__link > i {
    margin-right: 0;
}

/* Main Content */
.vk-layout__main {
    margin-left: var(--permanent-drawer-width);
    margin-top: var(--toolbar-height);
    flex: 1;
    padding: var(--gap-double) var(--content-padding-horizontal);
    transition: margin-left 0.3s ease;
}

.vk-layout__main-menu--collapsed ~ .vk-layout__main {
    margin-left: 56px;
}

.content-container {
    max-width: var(--content-container-max-width);
    margin: 0 auto;
    width: 100%;
}

.content-section {
    background-color: var(--white);
    border-radius: 4px;
    padding: var(--gap-double);
    margin-bottom: var(--gap-double);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--gray-darker);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

/* Responsive Design */

/* Tablet/Small Desktop (377px-1279px): Icon-only sidebar by default, expandable to full */
@media (min-width: 377px) and (max-width: 1279px) {
    .vk-layout__main-menu {
        width: 56px;
        transform: none;
        left: 0;
    }

    /* When NOT collapsed, show full menu with text */
    .vk-layout__main-menu:not(.vk-layout__main-menu--collapsed) {
        width: 280px;
    }

    .vk-layout__main-menu--collapsed {
        transform: none;
        width: 56px;
    }

    .vk-layout__main {
        margin-left: 56px;
    }

    /* Adjust content margin when menu is expanded */
    .vk-layout__main-menu:not(.vk-layout__main-menu--collapsed) ~ .vk-layout__wrapper .vk-layout__main {
        margin-left: 280px;
    }

    .mobile-menu-toggle {
        display: none; /* No hamburger - icon sidebar always visible */
    }

    /* Hide text labels by default (icon-only mode) */
    .vk-main-web-menu__link span {
        display: none;
    }

    /* Show text labels when expanded (not collapsed) */
    .vk-layout__main-menu:not(.vk-layout__main-menu--collapsed) .vk-main-web-menu__link span {
        display: inline;
    }

    /* Default to collapsed state on tablet */
    .vk-layout__main-menu {
        /* Will be set to collapsed via JavaScript unless user expands it */
    }
}

/* Mobile/Phone (≤376px): Hidden by default, hamburger toggles full menu */
@media (max-width: 376px) {
    .mobile-menu-toggle {
        display: block;
    }

    .vk-layout__main-menu {
        transform: translateX(-100%);
        width: 280px;
        z-index: 12;
    }

    .vk-layout__main-menu--open {
        transform: translateX(0);
    }

    /* Show text labels when menu is open on mobile */
    .vk-layout__main-menu--open .vk-main-web-menu__link span {
        display: inline !important;
    }

    .vk-layout__main {
        margin-left: 0;
        padding: var(--gap-double) var(--content-padding-horizontal-phone);
    }

    .vk-layout__toolbar {
        padding: 0 var(--content-padding-horizontal-phone);
    }

    .mdc-layout-grid {
        gap: 13px; /* Athena $gap on phone */
    }

    .mdc-layout-grid__cell,
    .mdc-layout-grid__cell--span-6,
    .mdc-layout-grid__cell--span-4,
    .mdc-layout-grid__cell--span-3 {
        grid-column: span 12;
    }

    .vk-fab-position {
        right: 16px;
        bottom: 16px;
    }

    .content-section {
        padding: var(--gap-double) var(--gap);
    }
}

/* Menu overlay for mobile */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 11;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.menu-overlay--visible {
    opacity: 1;
    pointer-events: auto;
}